A simplified theory and method for torsional-warping of arbitrary thin-walled box girder sections considering secondary non-uniform shear deformation

Key Points

• Torsional-warping significantly impacts the structural behavior of thin-walled box girders, affecting stability.
• Key findings indicate that secondary non-uniform shear deformation plays a critical role in the analysis of these girders.
• Analysis employed a novel theoretical framework for evaluating shear deformation in structural engineering contexts.
• Findings highlight the need for refined design approaches in engineering to account for torsional behavior.